PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/06-17:13:10
G03     194.4          34.1                9.6 +/-    0.80      15.5 +/-    0.80  0.120 / 0.150
G07     275.1          27.9               10.9 +/-    0.72      19.9 +/-    0.72  0.200 / 0.220
G08     155.8          13.2               12.6 +/-    2.64      32.7 +/-    2.64  0.160 / 0.250
G09     318.7          46.4                9.7 +/-    0.63      12.9 +/-    0.63  0.150 / 0.230
G16     51.6           52.6                9.7 +/-    0.74      11.9 +/-    0.74  0.030 / 0.040
G22     179.2          17.5               10.7 +/-    0.96      25.2 +/-    0.96  0.030 / 0.050
G23     28.0           80.5                9.8 +/-    1.70      10.0 +/-    1.70  0.030 / 0.030
G26     43.3           23.5                8.8 +/-    2.50      17.7 +/-    2.50  0.020 / 0.030
G27     115.7          25.4               11.9 +/-    1.99      23.0 +/-    1.99  0.070 / 0.090